. "Belongs to peptidase family A1." . "From the zygomycete fungi Rhizopus chinensis and R.niveus." . . . "Rhizopuspepsin" . "Rhizopus aspartic proteinase" . . . . . "Hydrolysis of proteins with broad specificity similar to that of pepsin A, preferring hydrophobic residues at P1 and P1'. Clots milk and activates trypsinogen. Does not cleave 4-Gln-|-His-5, but does cleave 10-His-|-Leu-11 and 12-Val-|-Glu-13 in B chain of insulin." .